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/** @file
Declaration of the boot file download function.
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __EFI_HTTP_BOOT_HTTP_H__
#define __EFI_HTTP_BOOT_HTTP_H__
#define HTTP_BOOT_REQUEST_TIMEOUT 5000 // 5 seconds in uints of millisecond.
#define HTTP_BOOT_RESPONSE_TIMEOUT 5000 // 5 seconds in uints of millisecond.
#define HTTP_BOOT_BLOCK_SIZE 1500
#define HTTP_USER_AGENT_EFI_HTTP_BOOT "UefiHttpBoot/1.0"
//
// Record the data length and start address of a data block.
//
typedef struct {
LIST_ENTRY Link; // Link to the EntityDataList in HTTP_BOOT_CACHE_CONTENT
UINT8 *Block; // If NULL, the data is in previous data block.
UINT8 *DataStart; // Point to somewhere in the Block
UINTN DataLength;
} HTTP_BOOT_ENTITY_DATA;
//
// Structure for a cache item
//
typedef struct {
LIST_ENTRY Link; // Link to the CacheList in driver's private data.
EFI_HTTP_REQUEST_DATA *RequestData;
HTTP_IO_RESPONSE_DATA *ResponseData; // Not include any message-body data.
HTTP_BOOT_IMAGE_TYPE ImageType;
UINTN EntityLength;
LIST_ENTRY EntityDataList; // Entity data (message-body)
} HTTP_BOOT_CACHE_CONTENT;
//
// Callback data for HTTP_BODY_PARSER_CALLBACK()
//
typedef struct {
EFI_STATUS Status;
//
// Cache info.
//
HTTP_BOOT_CACHE_CONTENT *Cache;
BOOLEAN NewBlock;
UINT8 *Block;
//
// Caller provided buffer to load the file in.
//
UINTN CopyedSize;
UINTN BufferSize;
UINT8 *Buffer;
HTTP_BOOT_PRIVATE_DATA *Private;
} HTTP_BOOT_CALLBACK_DATA;
/**
Discover all the boot information for boot file.
@param[in, out] Private The pointer to the driver's private data.
@retval EFI_SUCCESS Successfully obtained all the boot information .
@retval Others Failed to retrieve the boot information.
**/
EFI_STATUS
HttpBootDiscoverBootInfo (
IN OUT HTTP_BOOT_PRIVATE_DATA *Private
);
/**
Create a HttpIo instance for the file download.
@param[in] Private The pointer to the driver's private data.
@retval EFI_SUCCESS Successfully created.
@retval Others Failed to create HttpIo.
**/
EFI_STATUS
HttpBootCreateHttpIo (
IN HTTP_BOOT_PRIVATE_DATA *Private
);
/**
This function download the boot file by using UEFI HTTP protocol.
@param[in] Private The pointer to the driver's private data.
@param[in] HeaderOnly Only request the response header, it could save a lot of time if
the caller only want to know the size of the requested file.
@param[in, out] BufferSize On input the size of Buffer in bytes. On output with a return
code of EFI_SUCCESS, the amount of data transferred to
Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
the size of Buffer required to retrieve the requested file.
@param[out] Buffer The memory buffer to transfer the file to. IF Buffer is NULL,
then the size of the requested file is returned in
BufferSize.
@param[out] ImageType The image type of the downloaded file.
@retval EFI_SUCCESS The file was loaded.
@retval EFI_INVALID_PARAMETER BufferSize is NULL or Buffer Size is not NULL but Buffer is NULL.
@retval EFI_OUT_OF_RESOURCES Could not allocate needed resources
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry.
BufferSize has been updated with the size needed to complete
the request.
@retval Others Unexpected error happened.
**/
EFI_STATUS
HttpBootGetBootFile (
IN HTTP_BOOT_PRIVATE_DATA *Private,
IN BOOLEAN HeaderOnly,
IN OUT UINTN *BufferSize,
OUT UINT8 *Buffer,
OUT HTTP_BOOT_IMAGE_TYPE *ImageType
);
/**
Clean up all cached data.
@param[in] Private The pointer to the driver's private data.
**/
VOID
HttpBootFreeCacheList (
IN HTTP_BOOT_PRIVATE_DATA *Private
);
#endif
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